There are two types of readers that will find this book useful: those who have an interest in the Metadatabase model as an integration technology, and those who also seek a general discussion on information system analysis and design. To this end, a general conceptual framework on enterprise integration and modeling is provided in the first chapter, and is used to tie together all of the remaining chapters of the book. The next two chapters present some basics and examples of systems analysis and design for enterprise modeling; which serve the purposes of general discussion on the subject as well as illustrating the modeling methods particular to the Metadatabase approach. The particular methods are discussed fully in Chapter 4. An overview of the Metadatabase Model is provided in Chapter 5 and illustrated with a `paper demonstration' of a basic Metadatabase prototype in Chapter 6. The main technical elements of the model are presented in Chapters 7-9. The model is then applied to manufacturing in Chapter 10, where a core information model for implementing the Metadatabase approach to integration is also included. Chapter 11 extends the Metadatabase technology into the realm of information visualization. The new user interface model developed can be applied to integrate the traditional management of information in an enterprise with new cyberspace applications such as electronic commerce. The Metadatabase model of enterprise information integration (for multiple systems) has been developed at Rensselaer Polytechnic Institute under the sponsorships of Alcoa, Digital, GE, GM, and IBM (from 1986-1995 through the Computer-Integrated Manufacturing and the Adaptive Integrated Manufacturing Enterprises programs), the National Science Foundation (since 1991), Samsung (since 1995), and U.S. Army (since 1995). The technology is being developed into a product for Samsung and the Army. This is the first expository book on the topic.